US Bridges

EB Diaah over Hunter Mill Road

Fair

Fairfax County, Virginia · 8.0 Miles from Dulles Air · Structure no. 2100039P0000000

Built
1963
62 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
122 ft
3 main spans
Daily traffic
22,000
2024 count
Owner
Federal
Metropolitan Washington Airports Service

About this bridge

EB Diaah over Hunter Mill Road is a steel stringer/multi-beam or girder carrying EB Diaah over Hunter Mill Road in Fairfax County, Virginia. It was built in 1963, so it is 62 years old, older than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 22,000 vehicles a day, projected to reach 26,400 by 2044. The structure is 122 ft (37.3 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEB Diaah
CrossesHunter Mill Road
Location8.0 Miles from Dulles Air
Coordinates38.94767, -77.31198
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73 US tons
Inventory rating43 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length122 ft (37.3 m)
Longest span52 ft (15.8 m)
Deck width44 ft (13.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,000 (2024)
Projected traffic26,400 by 2044
Trucks—
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerMetropolitan Washington Airports Service
Maintained byMetropolitan Washington Airports Service
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost$444,000 (2021 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was EB Diaah over Hunter Mill Road built?

It was built in 1963, making it 62 years old in 2025.

What condition is EB Diaah over Hunter Mill Road in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does EB Diaah over Hunter Mill Road carry?

About 22,000 vehicles per day (2024 count).

How long is EB Diaah over Hunter Mill Road?

The structure is 122 ft (37.3 m) long with a longest span of 52 ft (15.8 m) and a deck 44 ft wide.

Who owns EB Diaah over Hunter Mill Road?

It is owned by the Metropolitan Washington Airports Service.